Paramount PAR17537 Ball End Hex Key Set 13 Piece

Product Description

The PARAMOUNT PAR17537 is a 13-piece L-key ball end hex key set covering a hex size range of 0.05 inches to 3/8 inches. Each key is formed from steel and features a ball end tip that allows fastener engagement at off-axis angles, useful in tight or obstructed installations where a straight approach is not possible. The L-key handle design provides two points of torque application: the short arm for high torque and the long arm for fast turning. At 9.38 inches overall length, the set stores in an included plastic bench stand for organized bench or van access. Licensed tradespeople working on HVAC equipment, electrical panels, pump assemblies, and mechanical equipment routinely carry this type of set.

This set is suited for residential and light commercial service work involving equipment fasteners, access panel screws, set screws on pulleys or couplings, and other hex-drive hardware. The plastic bench stand keeps all 13 keys indexed and visible at the workbench or in a service vehicle, reducing time spent locating individual sizes. The inch measurement range from 0.05 through 3/8 covers the majority of standard SAE hex fasteners found in HVAC, plumbing, and electrical equipment assemblies.

Key Features

• Ball end tip allows off-axis engagement up to approximately 30 degrees for access in tight spaces
• L-key handle provides high-torque short-arm and fast-spin long-arm drive options
• 13-piece set covers 0.05 inches through 3/8 inches SAE hex sizes
• Steel construction for durability under repeated torque loading
• Plastic bench stand keeps all keys indexed, visible, and organized
• Overall length of 9.38 inches on the bench stand for compact storage

Compatibility

Designed for use with standard SAE inch hex fasteners across residential and light commercial HVAC, plumbing, electrical, and mechanical equipment applications.

Installation Notes

No licensed trade certification is required to use hand tools, but proper tool selection is critical to avoid fastener rounding. Select the key that fits the hex socket fully and seats without play before applying torque. Always de-energize equipment and isolate pressure or refrigerant circuits before opening access panels or removing set screws from rotating components. Keep cutting edges clean and inspect keys periodically for rounding or cracking before use.